RiverFish

Roach · Rutilus rutilus

Roach in the River Derwent (Yorkshire)

Largest measured roach: 37.1 cm

The largest roach measured in Environment Agency surveys of the River Derwent (Yorkshire) was 37.1 cm, recorded at Buttercrambe DERCORS9 on 15 September 2009.

Across 5,406 measured roach, the median measured length was 5 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Derwent (Yorkshire).

See roach records across England →

Most recent observation19 August 2024Bubwith - Fry Survey · 24 fish
Largest measured roach
37.1 cm
Median length
5 cm
Fish measured
5,406
Survey locations
16

Individual EA measurements

Largest measured roach

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
37.1 cm15 Sept 2009Buttercrambe DERCORS9119820
36.6 cm5 Sept 2001Yedingham DERCORS424103
35.6 cm28 Aug 2003Yedingham DERCORS478326
35.6 cm2 Sept 2002Yedingham DERCORS472225
35.3 cm2 Sept 2002Yedingham DERCORS472225
33.7 cm9 Aug 2010Yedingham DERCORS4124864
33.7 cm18 Sept 1997Low Hutton DERCORS6109873
33.4 cm5 Sept 2001Yedingham DERCORS424103
33.3 cm6 Sept 2000Stamford Bridge DERCORS10109920
33.1 cm11 Aug 2010Stamford Bridge DERCORS10124186

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where roach were found

Each point marks a survey location with at least one roach record.

Choose a point on the map to see what was recorded there.

Map points are approximate and don’t show fishing access. Check local permissions before visiting.

Place surveyedFirst recordedLast recordedVisits finding roach
Yedingham - Fry Survey18 Sept 198419 Aug 202420
Bubwith - Fry Survey18 Sept 198419 Aug 202433
Yedingham DERCORS45 Sept 200131 Jul 202412
Sutton Upon Derwent DERCORS1826 Sept 199730 Jul 202414
Stamford Bridge DERCORS1024 Apr 199529 Jul 202416
Malton DERCORS55 Sept 200116 Jul 201812
Kirkham Abbey DERCORS77 Sept 200116 Jul 201812
Buttercrambe DERCORS914 Sept 200128 Jun 201810
Howsham DERCORS812 Sept 200116 Jul 201510
Wheldrake Ings DERCORS1917 Sept 200119 Oct 20088
Kexby21 Jun 200621 Jun 20061
Low Hutton DERCORS618 Sept 199721 Sept 20057
Barmby on the Marsh DERCORS2123 Sept 199711 Sept 20035
Breighton DERCORS2025 Apr 199510 Sept 20036
Yedingham Fish Haven - Fry Survey18 Sept 198929 Sept 19986
Low Marishes Fish Haven - Fry Survey18 Sept 198913 Sept 19943

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

1984–2024

Survey records by year

Each bar shows how many survey visits recorded roach that year.

Fish measured by surveyors

Measured length distribution

See how the 5,406 measured fish were spread across different length ranges.

Smallest
1.5 cm
Lower quarter
3.5 cm
Median
5 cm
Upper quarter
11 cm
Largest
37.1 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Derwent (Yorkshire)

Compare other species with enough survey and measurement data for a detailed page.

Minnow Bullhead Stone loach Dace European eel 3-spined stickleback

Before you fish

Good to know

These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.

Learn how RiverFish uses the data →